I hope you at least drew a giant moustoosh on 'em all.
Bagster
I would take the offensive images down and set them on the floor, leaning them against the walls, turning them backwards, placing symbols next to them like- rolls of toilet paper, garbage cans or garbage bags, plungers, bleach, mouse traps or rodent poison, or any other props that could be found in the house. If all else fails, leave hand written notes of a damning nature. Use social media rating sites to NUKE this owner!
Could I recommend a nice coat of RoundUp on that pix?